(S07E07) Too often when a show reaches an anniversary, like say 100 episodes, the producers feel the need to mark the occasion with an extraordinary entry. That was what happened with Monk.

To commemorate the 100th episode, they created Mr. Monk's 100th Case, and using a show within a show format, celebrated Adrian Monk, a modern day Sherlock Holmes. San Francisco's defective detective

Thank goodness it all worked! I was afraid we were going to get a clip-laden, down-memory-lane type of show with nothing remotely intriguing. No, writer Tom Scharpling and company were more clever than that.